Phase Properties of Laser High-Order Harmonics Generated on Plasma Mirrors

Journal Article · Fri Mar 07 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.095004· OSTI ID:21123652

Quere, F; Thaury, C; Bonnaud, G; Monot, P; Martin, Ph ^[1]; Geindre, J-P ^[2]

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1. Service des Photons, Atomes et Molecules, Commissariat a l'Energie Atomique, DSM/IRAMIS, CEN Saclay, 91191 Gif sur Yvette (France)
2. Laboratoire pour l'utilisation des lasers intenses, UMR 7605-CNRS-CEA-Ecole Polytechnique-Universite Paris VI, F91128 Palaiseau (France)

As a high-intensity laser-pulse reflects on a plasma mirror, high-order harmonics of the incident frequency can be generated in the reflected beam. We present a numerical study of the phase properties of these individual harmonics, and demonstrate experimentally that they can be coherently controlled through the phase of the driving laser field. The harmonic intrinsic phase, resulting from the generation process, is directly related to the coherent sub-laser-cycle dynamics of plasma electrons, and thus constitutes a new experimental probe of these dynamics.

• OSTI ID: 21123652
• Journal Information: Physical Review Letters, Vol. 100, Issue 9; Other Information: DOI: 10.1103/PhysRevLett.100.095004; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRONS
HARMONICS
LASER RADIATION
LASERS
MIRRORS
NUMERICAL ANALYSIS
PLASMA